Tag: devops

Service restart not showing logs? systemd hides stdout. Learn journalctl, systemctl status, and debugging workflows for silent systemd failures.

JSON mode forces models to output valid JSON. When it's a lifesaver vs. when it's overkill and makes the model worse.

You committed .env.production once. Your database credentials are in git forever. Here's how to use dotenv without shooting yourself.

Claude Code found a Linux vulnerability hidden for 23 years. You can use the same AI code auditing approach to find bugs in your own projects before attackers do.

Stop letting Docker Hub throttle your CI/CD. Run Harbor for RBAC, Trivy scanning, image replication, and a real UI — on infrastructure you control.

You get 50 alerts a day and ignore all of them. That's not monitoring — that's noise. Here's how to build alerts people actually care about.

Cloudflare Workers run your JS at the edge — no servers, no cold starts, 100k free req/day. Here's what they're actually good for.

A practical cookbook of real-world Caddyfile patterns — reverse proxy, auth, redirects, SPA serving, rate limiting, and more.

Shorter intervals = more data. But also more storage, CPU load, and potential instability. Here's the tradeoff you're actually making.

You think v1.1.0 is backward compatible. Your users think breaking changes are v2.0.0. Both of you are wrong about something.

Certbot isn't the only ACME client. Explore Caddy, acme.sh, lego, and Step CA — with practical examples for wildcard certs and DNS-01 challenges.

HAProxy is the battle-tested load balancer powering GitHub, Reddit, and Instagram. Here's how to actually use it without reading 500 config options.